Post on 01-May-2020
RESELLER
Continuous natural air extraction The labyrinthine Brakel® Microlab is a continuous weatherproof natural roof ventilator, specially designed for industrial spaces where permanent high internal heat loads must be extracted. The maintenance-friendly labyrinth structure can be fitted with a closable section so that for instance no unwanted energy loss occurs during downtime. Adding sound baffles can realise the required noise damping.
Brakel® Microlab
High aerodynamic air passage By means of 3D design techniques, the Microlab achieves an optimum aerodynamic air passage for maximum performance.The Microlab can be supplied in two different versions for height and air passage: • Brakel® Microlab (straight louvre structure/H=645 mm/Cvw = 0.31) • Brakel® Microlab Plus (oblique louvre structure/H=820 mm/Cvw = 0.52)
2180114 Microlab Brakel Lareine_EN_Def.indd 1 08-06-18 13:09
Microlab• Straight louvre structure • Height 645 mm • Cv value: - no cross wind infl uence: Cv0 = 0.19 - with cross wind infl uence: Cvw = 0.31
Microlab Plus• Oblique louvre structure • Height 820 mm • Cv value: - no cross wind infl uence: Cv0 = 0.28 - with cross wind infl uence: Cvw = 0.52
465
180
500-3800mm 800-....mm
465
180
640
180
500-3800mm 800-....mm
640
180
200 200
200 200
338 62
130 130 130 130
130 130130 130
RESELLER
Cross section Longitudinal section
Cross section
Versions
Longitudinal section
2180114 Microlab Brakel Lareine_EN_Def.indd 2 08-06-18 13:09
RESELLER
MICROLAB MICROLAB PLUS
Type Size Geometric surface
Aerodynamic surface *) Weight in kg Aerodynamic
surface *) Weight in kg
W x L (mm) Av in m² Aa in m² Without closable section
With closable section Aa in m² Without closable
section With closable
section
50- 80 500 x 800 0.40 0.12 21 31 0.21 28 3650-120 500 x 1200 0.60 0.19 30 41 0.31 39 4850-160 500 x 1600 0.80 0.25 38 50 0.42 49 6050-200 500 x 2000 1.00 0.31 46 60 0.52 60 7250-240 500 x 2400 1.20 0.37 55 70 0.62 71 85
100- 80 1000 x 800 0.80 0.25 30 41 0.42 40 50100-120 1000 x 1200 1.20 0.37 41 54 0.62 55 67100-160 1000 x 1600 1.60 0.50 52 67 0.83 70 84100-200 1000 x 2000 2.00 0.62 63 81 1.04 84 101100-240 1000 x 2400 2.40 0.74 75 94 1.25 99 117
150- 80 1500 x 800 1.20 0.37 39 51 0.62 53 64150-120 1500 x 1200 1.80 0.56 53 68 0.94 71 85150-160 1500 x 1600 2.40 0.74 67 85 1.25 90 107150-200 1500 x 2000 3.00 0.93 80 101 1.56 109 129150-240 1500 x 2400 3.60 1.12 94 118 1.87 127 150
200- 80 2000 x 800 1.60 0.50 47 61 0.83 65 78200-120 2000 x 1200 2.40 0.74 64 82 1.25 88 104200-160 2000 x 1600 3.20 0.99 81 102 1.66 110 130200-200 2000 x 2000 4.00 1.24 97 122 2.08 133 157200-240 2000 x 2400 4.80 1.49 114 142 2.50 156 183
250- 80 2500 x 800 2.00 0.62 56 72 1.04 77 92250-120 2500 x 1200 3.00 0.93 76 95 1.56 104 123250-160 2500 x 1600 4.00 1.24 95 119 2.08 131 154250-200 2500 x 2000 5.00 1.55 114 143 2.60 157 185250-240 2500 x 2400 6.00 1.86 134 167 3.12 184 216
300- 80 3000 x 800 2.40 0.74 65 82 1.25 90 106300-120 3000 x 1200 3.60 1.12 87 109 1.87 120 142300-160 3000 x 1600 4.80 1.49 109 136 2.50 151 177300-200 3000 x 2000 6.00 1.86 131 164 3.12 182 213300-240 3000 x 2400 7.20 2.23 154 191 3.74 212 249
350- 80 3500 x 800 2.80 0.87 74 92 1.46 102 120350-120 3500 x 1200 4.20 1.30 99 123 2.18 137 160350-160 3500 x 1600 5.60 1.74 124 154 2.91 171 201350-200 3500 x 2000 7.00 2.17 148 184 3.64 206 241350-240 3500 x 2400 8.40 2.60 173 215 4.37 240 282
380- 80 3800 x 800 3.04 0.94 79 98 1.58 110 128380-120 3800 x 1200 4.56 1.41 106 131 2.37 147 171380-160 3800 x 1600 6.08 1.88 132 164 3.16 184 215380-200 3800 x 2000 7.60 2.36 159 197 3.95 221 258380-240 3800 x 2400 9.12 2.83 185 230 4.74 257 301
Specifications
Width dimension Min. 500 mm - max. 3800 mmAll intermediate widths possible
Length dimension Min. 800 mm - no maximum Sections are supplied fully assembled and can be connected lengthwise
*) Aerodynamic surface (Aa = Av x Cvw)
Cv value MICROLAB MICROLAB PLUS
No cross wind influence (Cv0) 0.19 0.28
With cross wind influence (Cvw *)
) 0.31 0.52 **)
*) Cvw = measured under the influence of a headwind and dependent on the size of the ventilator
**) If the ventilator is to be placed with tailwind, then Cvw = 0.59 can be used for the calculation
2180114 Microlab Brakel Lareine_EN_Def.indd 3 08-06-18 13:09
For further information, go to our website: www.brakel.comTech
nica
l cha
nges
rese
rved
Lareine Engineering LtdUnit 1, 28 Firth RoadHoustoun Industrial EstateLivingston, EH54 5DJTelephone: 01501 731600/731699 - Fax: 01501 733828 RESELLER
Operation P single-action compressed air operationP2 double-action compressed air operationM motor control 24 V or 230 V
FinishThe Microlab is standard untreated, and on request can be supplied anodised or enamelled in any required RAL colour.
Accessories• Removable side walls for cleaning• Sound baffl es
InstallationThe fully assembled sections are fi tted standard with eye bolts and connecting pieces to facilitate easy assembly.
Application Suitable for roof application.
MaterialHardened single-walled aluminium, seawater and corrosion resistant (EN AW 5754). Weather-resistant brush seal for the aluminium closable section.
Versions Microlab: single-walled aluminium with straight louvre structureMicrolab Plus: single-walled aluminium with oblique louvre structure
Closable sectionTo prevent heat loss, when undesirable, the Microlab can be fi tted on top with a maintenance-free layered closable section. The closable section can be supplied with or without brushes. The brush fi nish increases the sealing properties of the Microlab.
Flanges
EN21
8011
4/Br
akel
® M
icro
lab
Lare
ine
02-2
018.
1
Microlab with sound baffl es above the roof Microlab Plus with sound baffl es below the roof
FREQUENCY (IN HZ)
125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz Rw (dB)
With
out
soun
d ba
ffl es
Without closable section 2.2 4.6 8 10.7 11 11.5 10
With closable section 6 12 12.4 15.4 17.1 17.6 15
With
sou
nd b
affl e
s (w
ithou
t clo
sabl
e se
ctio
n)H
eigh
t =
500 mm 5 11 13 14 13 11 14
750 mm 5.5 13.5 17 19 17 13 18
1000 mm 6 16 21 23 21 15 21
1250 mm 7 19 24 27.5 24 16.5 25
1500 mm 8 21.5 27 32 27 18 27
Sound baffl es The Microlab can be fi tted with sound baffl es above or below the roof in order to damp noise from the inside to the outside, or vice versa. The sound baffl es are 200 mm wide. The damping values for the various baffl e heights (Rw in dB) are shown below. Customised versions on request.
2180114 Microlab Brakel Lareine_EN_Def.indd 4 08-06-18 13:10